@@ -98,6 +98,7 @@ struct mt76x02_dev {
u32 tx_hang_reset;
u8 tx_hang_check;
+ u8 mcu_timeout;
struct mt76x02_calibration cal;
@@ -61,6 +61,7 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
"MCU message %d (seq %d) timed out\n", cmd,
seq);
ret = -ETIMEDOUT;
+ dev->mcu_timeout = 1;
break;
}
@@ -494,18 +494,28 @@ static void mt76x02_watchdog_reset(struct mt76x02_dev *dev)
static void mt76x02_check_tx_hang(struct mt76x02_dev *dev)
{
if (mt76x02_tx_hang(dev)) {
- if (++dev->tx_hang_check < MT_TX_HANG_TH)
- return;
-
- mt76x02_watchdog_reset(dev);
-
- dev->tx_hang_reset++;
- dev->tx_hang_check = 0;
- memset(dev->mt76.tx_dma_idx, 0xff,
- sizeof(dev->mt76.tx_dma_idx));
+ if (++dev->tx_hang_check >= MT_TX_HANG_TH)
+ goto restart;
} else {
dev->tx_hang_check = 0;
}
+
+ if (dev->mcu_timeout)
+ goto restart;
+
+ return;
+
+restart:
+ mt76x02_watchdog_reset(dev);
+
+ mutex_lock(&dev->mt76.mmio.mcu.mutex);
+ dev->mcu_timeout = 0;
+ mutex_unlock(&dev->mt76.mmio.mcu.mutex);
+
+ dev->tx_hang_reset++;
+ dev->tx_hang_check = 0;
+ memset(dev->mt76.tx_dma_idx, 0xff,
+ sizeof(dev->mt76.tx_dma_idx));
}
void mt76x02_wdt_work(struct work_struct *work)
MCU request timeout usually indicates that the device is no longer responsive, and it usually does not recover without a reset Signed-off-by: Felix Fietkau <nbd@nbd.name> --- drivers/net/wireless/mediatek/mt76/mt76x02.h | 1 + .../net/wireless/mediatek/mt76/mt76x02_mcu.c | 1 + .../net/wireless/mediatek/mt76/mt76x02_mmio.c | 28 +++++++++++++------ 3 files changed, 21 insertions(+), 9 deletions(-)